The ORC team is excited to announce the release of ORC v1.2.1.

• Released: 5 October 2016
• Source code: orc-1.2.1.tar.gz
• GPG Signature signed by Owen O’Malley (3D0C92B9)
• Git tag: rel/release-1.2.1
• Maven Central: ORC 1.2.1
• SHA 256: 793bcc0419574fba…
• Fixed issues: ORC-1.2.1

The new features of ORC 1.2:

• ORC-54 Evolve schemas based on field name rather than index
• ORC-84 Create a separate java tool module.
• ORC-77 and ORC-81 Implement LZO and LZ4 compression codecs.
• ORC-92 Add support for nested column id selection in C++
• ORC-69 Add batch option support in orc-scan tools.

Important fixes:

• HIVE-14214 ORC schema evolution and predicate push down do not work together.

Known issues:

• CVE-2018-8015 ORC files with malformed types cause stack overflow.

• ORC-135 Predicate push down is incorrect on timestamps when moved between timezones

• ORC-285 Empty vector batches of floats or doubles cause EOFException